Performance of a dry-method-epoxy modifier and a modified epoxy-asphalt mixture

2021 ◽  
Vol 266 ◽  
pp. 120229
Author(s):  
Yue Li ◽  
Dongwei Cao ◽  
Yanjun Zhang ◽  
Xiaopeng Jia
Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2003
Author(s):  
Wei Xu ◽  
Jintao Wei ◽  
Zhengxiong Chen ◽  
Feng Wang ◽  
Jian Zhao

The type and fineness of a filler significantly affect the performance of an asphalt mixture. There is a lack of specific research on the effects of filler fineness and dust from aggregates on the properties of epoxy asphalt (EA) mixtures. The effects of aggregate dust and mineral powder on the properties of an EA mixture were evaluated. These filler were tested to determine their fineness, specific surface area and mineral composition. The effects of these fillers on the EA mastic sample and mixture were evaluated. The morphology of the EA mastic samples was analyzed using scanning electron microscopy (SEM). The effects of the fillers on the Marshall stability, tensile strength and fatigue performance of the EA mixture were evaluated. The dust from the aggregates exhibited an even particle size distribution, and its average particle size was approximately 20% of that of the mineral powder. The SEM microanalysis showed that the EA mastic sample containing relatively fine dust formed a tight and dense interfacial bonding structure with the aggregate. The EA mixture sample containing filler composed of dust from aggregate had a significantly higher strength and longer fatigue life than that of the EA sample containing filler composed of mineral powder.


2011 ◽  
Vol 25 (7) ◽  
pp. 3117-3122 ◽  
Author(s):  
Zhendong Qian ◽  
Leilei Chen ◽  
Chenlong Jiang ◽  
Sang Luo

Sign in / Sign up

Export Citation Format

Share Document